20.500.12556/DKUM-16080 Sinergistični inhibicijski učinek Na-soli na kinetiko korozije nerjavnega jekla "1.4057" v raztopini H2SO4 Synergistic inhibition effect of sodium salts on the kinetics of corrosion of “1.4057” stainless steel in the H2SO4 solution Proučevali smo vpliv dveh pogosto uporabljenih inhibitorjev, natrijevega nitrita in natrijevega fosfata, na nerjavno jeklo »1.4057« v raztopini H2SO4 s koncentracijo, c = 0,075 mol/L. Testiranja smo izvajali pri različnih temperaturah in različnih koncentracijah inhibitorjev. Iz podatkov o izgubi mase smo določili hitrost korozije, učinkovitost inhibitorjev, adsorpcijske izoterme in aktivacijsko energijo korozijskih procesov. Ugotovili smo, da hitrost korozije z višanjem koncentracije inhibitorjev pada, z dvigom temperature narašča in da učinkovitost posameznih inhibitorjev narašča tako z dvigom njihove koncentracije, kakor tudi temperature medija. We have studied the impact of two commonly used inhibitors, sodium nitrite and sodium phosphate, in stainless steel »1.4057« in the H2SO4 solution with concentration, c = 0.075 mol/L. Tests were performed at different temperatures and different concentrations of inhibitors. From determined weight loss, corrosion rate, inhibition efficiency, adsorption isotherms and activation energy were determined. We found that the corrosion rate decreases by increasing the inhibitor concentration, increases with temperature rise and that the efficiency of individual inhibitors increases with increase of their concentration, as well as the temperature of the medium. korozija inhibitorji gravimetrična metoda hitrost korozije učinkovitost inhibitorjev adsorpcijske izoterme aktivacijska energija corrosion inhibitors gravimetric method corrosion rate .inhibition efficiency adsorption isitherms activation energy true true false [N. Zafošnik] Slovenski jezik Angleški jezik Diplomsko delo 2010-09-29 22:26:37 2010-10-04 09:40:16 2022-04-13 07:51:07 2023-12-20 03:16:11 2010 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 541.183(043.2) 14995222 URN:SI:UM:DK:LIPVOQZ4 UNI_Zafosnik_Natalija_2010.pdf UNI_Zafosnik_Natalija_2010.pdf 1 4DA9E40B51D4CC19B24EBCBA09871722 e4b7cb20f00be0bd406d515de88554b30d25e9079cb32bc3b672f02354636d04 8f2c513e-7c04-11eb-bb7a-00155d0001ca 20.500.12556/dkum/124bdf10-3283-4492-8a76-33ade3e5590a https://dk.um.si/Dokument.php?lang=slv&id=18030 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0